AT121056B - Process for purifying gases. - Google Patents

Process for purifying gases.

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Publication number
AT121056B
AT121056B AT121056DA AT121056B AT 121056 B AT121056 B AT 121056B AT 121056D A AT121056D A AT 121056DA AT 121056 B AT121056 B AT 121056B
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AT
Austria
Prior art keywords
gases
sodium
glass
purifying gases
introduction
Prior art date
Application number
Other languages
German (de)
Original Assignee
Ver Gluehlampen & Elec Ag
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Publication date
Application filed by Ver Gluehlampen & Elec Ag filed Critical Ver Gluehlampen & Elec Ag
Application granted granted Critical
Publication of AT121056B publication Critical patent/AT121056B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren   zur Reinigung von Gasen.   



   Die hohe chemische Aktivität der Alkali-bzw. Erdalkalimetalle macht dieselben vorzüglich geeignet, um Gase, insbesondere die   sogenannten Edelgase. von gasförmigen Verunreinigungen   zu befreien. 



   In der Vakuumtechnik, bei der Herstellung von   gasgefüllten Entladungsrohren, Glühlampen   
 EMI1.1 
 sich die Einführung des betreffenden Metalles in den Gasraum in sehr einfacher und bequemer Weise bewerkstelligen, indem man die innere Wandfläche des das Gas enthaltenden oder eines mit dem Gasraum kommunizierenden Glasgefässe mit einer d9nnen Metallschicht versieht und diesen Teil der Glaswand einer Elektrolyse bei entsprechender Temperatur unterwirft. wobei als Kathode die   Metallsehicht,   als Anode irgendein mit der äusseren Glasfläche in Berührung stehender Leiter benutzt wird.

   Zweckmässig verwendet man als Anode die Schmelze eines Salzes, welches das einzuführende Metall enthält. also im Falle der Natriumeinführung ein Natriumsalz (etwa Natriumnitrat). wodurch die unbeschränkte Einführung des Natriums bei unveränderter Glaszusummensetzung ermöglicht wird. Bei dieser Elektrolyse wandern die im Glas enthaltenen positiven Metallionen, insbesondere die Natriumionen, nach der Kathode, diffundieren dann als neutrale Atome durch diese hindurch und werden in dem Gasraum in Dampfform frei. Ein für   kontinuierliche   Reinigung von   strömenden   Gasen geeignetes   Ausführungs-   beispiel des erfindungsgemässen Verfahrens bzw. der Einrichtung ist in der Zeichnung schematisch dar- 
 EMI1.2 
 auf entsprechender Temperatur gehaltene Salzschmelze 3.

   Die innere Oberfläche des gekrümmten Rohrteiles ist mit einem Metallüberzug 4 versehen ; ein in die Glasröhre eingeschmozener Zuführungsdraht 5 dient als Zuleitung des Stromes zum   Metallüberzug. Der negative   Pol einer   Stromquelle   6 ist mit letzterem, 
 EMI1.3 
 fernzuhalten, empfiehlt es sich, unmittelbar nach der Einführungsstelle des Natriums einen stark gekühlten Röhrenabschnitt einzufügen. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for purifying gases.



   The high chemical activity of the alkali or. Alkaline earth metals make them ideally suited to gases, especially the so-called noble gases. to free from gaseous impurities.



   In vacuum technology, in the manufacture of gas-filled discharge tubes, incandescent lamps
 EMI1.1
 the introduction of the metal in question into the gas space can be accomplished in a very simple and convenient manner by providing the inner wall surface of the glass vessel containing the gas or of a glass vessel communicating with the gas space with a thin metal layer and subjecting this part of the glass wall to electrolysis at the appropriate temperature. The metal layer is used as the cathode and any conductor in contact with the outer glass surface is used as the anode.

   It is expedient to use the melt of a salt which contains the metal to be introduced as the anode. so in the case of sodium introduction a sodium salt (e.g. sodium nitrate). whereby the unrestricted introduction of sodium is made possible with unchanged glass composition. During this electrolysis, the positive metal ions contained in the glass, in particular the sodium ions, migrate to the cathode, then diffuse through it as neutral atoms and are released in vapor form in the gas space. An exemplary embodiment of the method or the device according to the invention which is suitable for continuous cleaning of flowing gases is shown schematically in the drawing.
 EMI1.2
 Melted salt kept at the appropriate temperature 3.

   The inner surface of the curved pipe part is provided with a metal coating 4; a feed wire 5 melted into the glass tube serves as a feed line for the current to the metal coating. The negative pole of a power source 6 is connected to the latter,
 EMI1.3
 to keep away, it is advisable to insert a strongly cooled tube section immediately after the site of introduction of the sodium.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Reinigung von Gasen, insbesondere von Edelgasen, mittels durch die Elektrolyse EMI1.4 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for cleaning gases, in particular noble gases, by means of electrolysis EMI1.4 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT121056D 1929-08-28 1929-08-28 Process for purifying gases. AT121056B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT121056T 1929-08-28

Publications (1)

Publication Number Publication Date
AT121056B true AT121056B (en) 1931-01-26

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ID=3632290

Family Applications (1)

Application Number Title Priority Date Filing Date
AT121056D AT121056B (en) 1929-08-28 1929-08-28 Process for purifying gases.

Country Status (1)

Country Link
AT (1) AT121056B (en)

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